Posted by **adam** on Monday, September 6, 2010 at 4:44pm.

just like to check if ive got these right. if not can you help??

make the subject (q)

p(q+r)=2(q-p)

ans q=pr+2p/(2-p)

make the subject (p)

p+3=qp+r/(2)

ans p=r-6/(2-q)

make the subject (r)

p(r-q)=2+3(q-r)

ans r=2+3q+pq/(p+3)

make the subject (x)

y=r-qp/(x)

ans x=r-qp/(y)

- 12th grade maths -
**jai**, Tuesday, September 7, 2010 at 5:21am
the second one:

make the subject (p)

p+3=qp+r/(2)

..is wrong,, must be:

ans: p=r-6/(2-2q)

the third one:

make the subject (r)

p(r-q)=2+3(q-r)

..is lacking parenthesis,, must be:

ans: r=(2+3q+pq)/(p+3)

the last one is wrong,,

y=r-qp/(x) *transpose r to left side

y-r = -qp/x *multiply both sides by x

x(y-r) = -qp *divide both sides by (y-r)

x = (-qp)/(y-r)

so there,, =)

## Answer this Question

## Related Questions

- 12th grade maths - just like to check if ive got these right. if not can you ...
- 12th grade maths - make x the subject y=r-qp/(x) is the ans x=-qp/(y-r) make the...
- 7th grade LA - Can you check these and let me if reason correct also? Choose the...
- maths-check my answers - Please check my answers 1) make c the subject of the ...
- 12th grade maths - factorise: 2x^2+6x-16, and 14x^2-3x-2. Solve: 6y^2-5y-6=0, ...
- 12th Grade Maths - make p the subject in both equtions ap+b=c-dp q - 1/2 p=6-3q
- 12th grade maths factorising expressions - make the subject (u) p=5t-u/u
- 12th grade maths - how to present math in different angles which represents ...
- 12th grade maths - how to present math in different angles which represents ...
- 6th grade Lang Arts - Can you check my homework, please? Identify each pronoun ...